% Copyright 2007 TeX Users Group.
% You may freely use, modify and/or distribute this file.
\typesize=10pt

% \input lucidasm.mac

\noheaders

% \def\joinrel{\mathrel{\mkern-4mu}}

% \mathchardef\bowtie="31F6
% \mathchardef\models="32EE
% \mathchardef\doteq="32C9
% \mathchardef\cong="329B

% Test on constructed arrows and such

These are not constructed:
%
$\leftarrow$ $\Leftarrow$ 
%
$\rightarrow$ $\Rightarrow$ 
%
$\leftrightarrow$ $\Leftrightarrow$  $\mapsto$ 

These are not constructed:
%
$\leftharpoonup$ $\leftharpoondown$ $\rightharpoonup$ $\rightharpoondown$
%

Are constructed:
%
$\longleftarrow$ $\Longleftarrow$
%
$\longrightarrow$ $\Longrightarrow$
%
$\longleftrightarrow$ $\Longleftrightarrow$ % $\iff$

Are constructed:
%
$\hookleftarrow$ $\hookrightarrow$
%
$\rightleftharpoons$
%
$\bowtie$  $\models$ $\longmapsto$ 

$\overrightarrow{x+y}$ $\overleftarrow{x+y}$
%
$\overbrace{x+y}$ $\underbrace{x+y}$

$\downarrow$ $\uparrow$ 

$\rightleftharpoons$ $\notin$ $\cong$ $\doteq$ 
% 
$\ddots$ $\vdots$ $\cdots$ $\ldots$

% $\lmoustache$ $\rmoustache$

% $\lgroup$ $\rgroup$

\end
